Seasonal variations in some chemical parameters of the Sokoto- Rima River System in north western Nigeria

Abstract

Some chemical parameters of water samples from Sokoto-Rima River at the fishing site for Argungu International Fishing and Cultural Festival (AIFCF) were assessed to determine the influence of water quality on the water productivity via titrations and instrumentation methods. Dissolved Oxygen was highest (18.67 ± 5.72 mg/L) in mid dry sub-season with overall mean of 13.68 ± 2.66 mg/L. Biological Oxygen Demand had annual mean of 4.34 ±1.56 mg/L. The annual mean pH value was 6.72 ±0.89. Conductivity was highest (128.80 ± 29.77 μS/cm) in early rainy sub-season with annual mean of 169.08 ±50.25 uS/Cm. The results provide baseline data for further limnological studies.